BNP at discharge was 309.3 ± 244.9 pg/mL in the OHAT-J 0–2 group and 324.5 ± 517.0 pg/mL in the OHAT-J ≥ 3 group (p = 0.878), indicating no difference in the degree of HF between the two groups. This evidence concerns the gene NPPB and hydrops fetalis.